167results about How to "Real-time monitoring of temperature changes" patented technology

An embodiment of the invention discloses a method of temperature drift compensation for infrared thermometers. The method includes: setting temperature sensors on a core and a retainer plate respectively, responding to black-body radiation in a thermostat, and acquiring multiple response output groups by controlling the thermostat and the continuous change of black-body temperature; linearly fitting the response output of the infrared thermometer to black-body temperature, interior temperature of the thermostat and first temperature of the core by the obtained data groups; compensating temperature drift caused by the temperature of the core through fitting results, and acquiring a function of relation of the response output of the infrared thermometer to the black-body temperature, the interior temperature of the thermostat and the first temperature of the core; calibrating with the retainer plate, and acquiring current ambient temperature according to the fitted relation function; removing the retainer plate, measuring the temperature of a target object by the infrared thermometer, and calculating the temperature of the target object according to the current response output, the current ambient temperature and the fitted relation function. The method has the advantages that temperature change can be monitored in real time for the calibrating retainer plate and the core, the temperature drift caused by the change in the temperature of the core and the ambient temperature is compensated, nonuniformity of the infrared thermometer can be corrected effectively, and temperature measurement is more accurate.

The invention relates to a coal and gas extruding mould. The center of a base plate is provided with a charging hole; a charging hole is provided with a gas inlet nozzle; the middle part of a front end plate is provided with a positioning hole; and the positioning hole is provided with an extruding port. The inside of a mould box is provided with a rear pressure plate and three upper pressure plates, wherein the rear pressure plate is fixed on the front end of a rear pressure head; the rear end of the rear pressure head runs through the rear end plate and is fixedly connected with a shim plate; three upper pressure plates are sequentially arranged from front to back and are fixed on the lower end of one upper pressure head respectively; the connecting lines between axes of three upper pressure heads are positioned in the same beeline; and the upper end of the upper pressure head runs through an upper sealing plate and protrudes upwards to the outside of the mould box. The coal and gas extruding mould adopts a mode of combining pressure in the horizontal direction and pressure in the vertical direction, can apply any ladder-type load on a protrudent coal body, has obvious gradient of force applied on a protrudent coal sample, can stimulate the phenomenon of concentrated stress in front of a protrudent working face and stimulate field horizontal ground stress; and a result obtained from a test is accurate and reliable.

The invention discloses a method and a device for simulating a thin-strip continuous casting technical process. The method comprises the following steps: arranging a melting crucible in a confined space or a vacuum space, filled with a protective gas, and arranging cooling dies above the melting crucible; mounting the cooling dies on a driving rod; during a test, driving the cooling dies by the driving rod to be inserted in the molten steel in the melting crucible; after the cooling dies are inserted in the molten steel, quickly filling a gap between the two cooling dies with the molten steel; under the chilling function of the cooling dies, solidifying to form a solidified shell; mounting cooling nozzles in position rightly opposite to the surface of the solidified shell; utilizing a temperature thermocouple to record temperature change of the solidified shell in the cooling process; when reaching a set cooling temperature, closing the cooling nozzles; starting an induction coil arranged outside the melting crucible to quickly heat the solidified sample and then preserve heat, setting the sample temperature during the heat preservation according to the coiling temperature of the test design, and utilizing the induction coil to preserve heat and slow cooling to simulate the cooling slowing process of the thin-strip continuous casting product after online coiling.

The invention belongs to a sizing machine for producing continuous carbon fibers, comprising a box body, a sizing groove arranged in the box body and a driving device fixed on the box body, wherein the sizing groove comprises a groove body and a partition board, a liquid distribution plate and an overflow plate which are arranged in the groove body from left to right and are vertical to the bottom of the groove body; the driving device comprises an inlet driving roller arranged at the upper-left part of the sizing groove, two sizing driving rollers positioned in a sizing area and an outlet driving roller arranged at the upper-right part of the sizing groove; the two sizing driving rollers are horizontally arranged and positioned between the inlet driving roller and the outlet driving roller; and driving shafts of the two sizing driving rollers are higher than the liquid level of a sizing agent of the sizing area. The invention solves the problems of long stay time of the carbon fibers in the sizing agent, poor sizing effect, complex structure, high manufacturing cost and inconvenience for daily cleaning and maintenance caused by the traditional sizing machine. By using the invention, the processing and manufacturing cost of the equipment can be reduced, the time of the carbon fibers in the sizing agent can be prolonged and the favorable sizing effect can be obtained.

The invention discloses an integrated intelligent fire hydrant. The integrated intelligent fire hydrant comprises a fire hydrant cap, a fire hydrant body, a connecting rod, a valve body, a valve flap,a sensor, a control unit and a monitoring terminal. The upper end of the fire hydrant body is connected with the fire hydrant cap, the lower end of the fire hydrant body is connected with the upper end of the valve body, the valve flap is arranged inside the valve body, and the lower end of the valve body is connected with a fire-fighting water supply pipe; the connecting rod is arranged inside the fire hydrant body, one end of the connecting rod penetrates the fire hydrant cap, and the other end of the connecting rod is connected with the valve flap; the sensor is arranged on the valve flap,and the measuring end penetrates the valve flap and is used for monitoring the water pressure in the fire-fighting water supply pipe; and the control unit is arranged in the fire hydrant cap and usedfor receiving the data of the sensor and transmitting the data to the monitoring terminal. By the adoption of the integrated intelligent fire hydrant, the fire hydrant is monitored in real time, andthe integrated intelligent fire hydrant has the beneficial effects of being convenient to mount, easy to use, capable of being applied under the severe environment and long in service life and can bewidely applied to fire hydrant monitoring occasions.

The invention belongs to the field of optical fiber sensing, and mainly relates to a temperature and direction recognizable curvature sensing optical fiber. A double-clad D-shaped multimode optical fiber with a semi-circular quartz cladding and an annularly-clad low-refractive-index plastic cladding is prepared through precision side grinding of an optical fiber preform and secondary pressure coating; the coating layer and the plastic cladding are mechanically peeled off, an SPR sensing film is plated, the restored optical fiber is reshaped by using a low-refractive-index liquid or a low-refractive-index coating adhesive, and an SPR sensing module is manufactured on the restored optical fiber; the optical fiber is novel and stable in structure, and high in bending performance, liquid and solid environment temperature measurement can be carried out through the resonance wavelength; multi-point simultaneous measurement based on the wavelength division multiplexing technology can also becarried out; curvature measurement, bending direction judgment and multi-point simultaneous measurement based on the wavelength division multiplexing technology can be carried out through two parameters of resonance wavelength and resonance valley depth, and the optical fiber and the method have a good application prospect in the fields of biomedicine, electronic chip monitoring, three gorges reservoir area landslide, reservoir banks and other geological environment monitoring.

The invention relates to an electronic nephroscope, in particular to a flexible bendable electronic nephroscope for percutaneous nephroseopy surgery and an application method of the flexible bendable electronic nephroscope and belongs to a medical instrument. The flexible bendable electronic nephroscope comprises a nephroscope body, an upper bent steel rope and a lower bent steel rope. The application method includes the steps of entering a focus part, making preparations before laser lithotripsy, treating small calculi, treating large calculi and treating special positions. The flexible bendable electronic nephroscope for the percutaneous nephroseopy surgery and the application method of the flexible bendable electronic nephroscope have the advantages of compact structure, higher operability and precision in positioning.

The present invention provides an aquatic product transportation monitoring system and method based on a wireless sensor network. The system comprises the temperature sensor nodes installed on the logistics boxes in which the frozen aquatic products are put; an information aggregation node installed on the inner wall of a refrigerator car used for the aquatic product transportation; and a central controller installed in a scheduling center. The plurality of temperature sensor nodes are communicated via a Zigbee protocol, the temperature sensor nodes and the information aggregation node are communicated via the Zigbee protocol, and the central controller and the information aggregation node transmit the data via a GSM base station. The aquatic product transportation monitoring system based on the wireless sensor network of the present invention can monitor the temperature change of the logistics boxes real-timely during the transportation process of the frozen aquatic products and can monitor the working states of the temperature sensors real-timely, so that the aquatic product temperature change during the logistics transportation process can be acquired largely, and the refrigerated transportation of the frozen products can be finished better.

The invention relates to an intelligent inspection robot which comprises a body. A charging connector is arranged on the front side of the body. Infrared distance measuring sensors are arranged on thefour faces of the body respectively. A host box is arranged on the upper side of the body. Heat dissipation holes are formed in the front side and the rear side of the mainframe box respectively. A first electric telescopic rod is arranged in the middle of the mainframe box. A spherical rotary joint is arranged on the upper side of the first electric telescopic rod. The right side of the spherical rotating wire joint is connected with an infrared thermal imager. The left side of the spherical rotary joint is connected with a camera. An illuminating lamp is arranged on the left side of the camera. A temperature and humidity sensor is arranged on the upper side of the right portion of a host. A sound sensor is arranged on the upper side of the temperature and humidity sensor. Crawler beltsare arranged on the two sides of the lower side of the body. Dusting brushes are arranged on the lower side of the body. A dust suction hole is formed in the rear side of the dusting brushes. A dust collection box is arranged on the rear side of the dust suction hole. The system has the advantages of being long in endurance time, high in intelligence, comprehensive in inspection, diversified in function and comprehensive in detection.

The invention discloses a switch reluctance motor comprising a motor base, wherein a stator is arranged on the motor base; a stator winding is wound on the stator; a rotor is arranged in the stator; a rotor shaft is fixed in the rotor; the motor base is provided with a front end cover and a rear end cover; the stator, the rotor and the rotor shaft are located in a sealed space defined by the front end cover and the rear end cover; a rotary transformer is arranged between the front end cover and the rotor; the transformer rotor of the rotary transformer is fixedly connected with the rotor shaft; the transformer stator of the rotary transformer is fixedly connected with t he front end cover; the stator winding is a three-phase concentrated winding; the stator and the rotor are in a doubly salient structure; eighteen magnetic poles are uniformly distributed on the stator; twelve magnetic poles are uniformly distributed on the rotor; and magnetic poles on the stator and the rotor are in a trapezoid gear structure. With the advantages of simple structure, reliable work, steady operation, small torque pulsation and low noise, the motor is conveniently applied on automobiles.

The invention belongs to the field of refrigeration appliances, in particular to a control method and control system for condenser temperature protection. The control method for the condenser temperature protection comprises the following steps that real-time temperature of a condenser is detected by a temperature sensor, sampling is performed on obtained temperature data by a sampling unit according to a sampling period, the temperature data are transmitted to a main control unit, and the main control unit controls the operation state of a compressor according to the change rate of the temperature data; when the rising speed of the temperature of the condenser is judged to be too high, the compressor is controlled to be closed down; if the rising speed of the temperature of the condenser is not out of a normal range, the compressor is controlled to be operated normally. Accordingly, the temperature change of the condenser can be monitored in real time, the operation state of the compressor can be controlled through the change rate of the temperature data, the misinformation rate is reduced, and the stability and reliability of a refrigeration system are improved.

The invention provides a liquid cooling server fault diagnosis method and device, a protection method and device after liquid cooling server fault diagnosis, a liquid cooling server, a computer readable storage medium and a computer program product. The liquid cooling server fault diagnosis method comprises the steps of obtaining an actual temperature value of the liquid cooling server; generatingan actual temperature curve of the liquid cooling server according to the plurality of actual temperature values; comparing the actual temperature curve with a pre-stored reference temperature curvewhen the liquid cooling server operates in a fault state; and if the actual temperature curve is matched with the reference temperature curve, determining that the liquid cooling server fails. According to the fault diagnosis method for the liquid cooling server, the reference temperature curve of the fault of the liquid cooling server is pre-stored, and the fault of the liquid cooling server is diagnosed when the actual temperature curve is matched with the reference temperature curve, so that the fault diagnosis reliability of the liquid cooling server is improved, and the protection effectof the liquid cooling server is ensured.

The invention provides a power cable fire hazard on-line monitoring system, and belongs to the field of the electrical technology and equipment. The power cable fire hazard on-line monitoring system is designed to be of a dispersed-measuring and concentrated-monitoring layered distributed structure according to actual requirements of power cable operation, and comprises a host, a bus interface, sub stations and temperature sensors. The temperature sensors accurately measure the temperature of a cable connector and all points of a cable, all the sub stations collect data transmitted by the temperature sensors in real time, after simple processing, the number of the sensors and corresponding data are transmitted to the host through an interface circuit, and the host manages all the sub stations and manages and displays on-site data through a good interface under the Windows environment. The power cable fire hazard on-line monitoring system can give out an alarm timely when the temperature is out of limit or the temperature rising speed is beyond a set alarming value according to the real-time monitored temperature changing of the power cable, guarantees safe operation of an electric system, and is novel in design, reasonable in structure, reliable in operation, and convenient to maintain.

The invention provides a tunnel monitoring system and a tunnel monitoring method. The tunnel monitoring system comprises a tunnel, a concrete layer, a plurality of optical fiber monitoring pieces anda demodulator, wherein the concrete layer is laid on a wall surface of the tunnel; the optical fiber monitoring pieces are arranged in the concrete layer; the optical fiber monitoring pieces are connected with the demodulator. According to the tunnel monitoring system and method disclosed by the invention, the problem in the prior art that a safe state of the tunnel is inconveniently monitored issolved.

The invention discloses a 500KV extra-high voltage power cable with a real-time temperature detection function, which comprises a conductor positioned in the center of the cable. A semiconductive tape, a conductor shielding layer, an insulating layer, an insulating shielding layer, a semiconductive water-blocking expansion buffer layer, a corrugated aluminum sheath and a nonmetallic sheath are sequentially arranged outside the conductor. A temperature detection optical fiber is arranged in the insulating shielding layer along the axial direction of the cable, and is connected with a switch cabinet temperature monitoring and early warning system. The 500KV extra-high voltage power cable with the real-time temperature detection function can monitor the temperature variations of long-distance cables in real time and accurately monitor the temperature conditions of high voltage switch contacts so as to realize point and line combination and comprehensive monitoring, and simultaneously can timely transmit fire alarming information to a fire alarming controller to realize gang control.

The invention discloses a convenience ear tag for sheep/goats, comprising an ear tag, connection block I and connection block II; the connection block I is connected to the upper portion of the ear tag, the connection block II is arranged on one side of the connection block I, a battery is arranged on one side of the inside of the ear tag, a GPS (global positioning system) unit is connected to thebottom of the battery, the bottom of the ear tag is provided with a temperature sensor, magnet II is arranged in the connection block I, and magnet I is arranged in the connection block II. The ear tag is effectively fixed to an ear of a sheep/goat through the magnets, a telescopic rod and a balloon; the GPS unit allows positional information of the sheep/goat to be accurately and effectively acquired so that loss of the sheep/goat is effectively avoided; the temperature sensor allows the changes in the temperature of the sheep/goat to be monitored effectively in real time.

The invention discloses a multi-dimensional data measuring device for a lump coal drilling process. The multi-dimensional data measuring device comprises an adsorption tank for adsorbing and desorbinglump coal, a reference tank which has the same size as the adsorption tank and is used for balancing pressure, and a high-low temperature test box for accommodating the adsorption tank and the reference tank, a temperature measuring drill rod is arranged in the adsorption tank, a non-contact magnetic coupling matching mode is adopted, the adsorption tank is driven by a driving motor to rotate, and the temperature measuring drill rod moves up and down through a propelling device; and the reference tank and the adsorption tank are respectively communicated with a gas source system for supplyinggas, a vacuum pumping system for pumping gas and a gas collecting device through a branch gas path and a main gas path. According to the method, various dimension data in the lump coal drilling process of the drill bit can be measured in different temperature environments,wherein the parameters comprise drill bit temperature change, while-drilling parameter change, lump coal gas content data, drill bit drilling process gas real-time analysis quantity and gas adsorption expansion deformation real-time monitoring data.